Annealing-box.



P. CORDES. ANNEALING BOX.

APPLIUATION FILED 111111. 4, 1912.

Patented Dec. 17,1912.

l IIE instan raras ramena lernten.

FRANK CORDES, OF OAKMONT, PENNSYLVANIA, ASSIGNOR T0 UNITED ENGINEER- INGAND FOUNDRY C0., 0F PITTSBURGH, PENNSYLVANIA, A CORPORATION OFPENNSYLVANIA.

Application filed March 4:, 1912.

Specification of Letters Patent.

ANNEALING-BOX.

To all whom it mayeoncem: y

Be it known thatiI, FRANK CORDES, a citizen of the United States, andresident of Oakmont, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement in AnnealingBoxes; and I do hereby declare the following to be a full, clear, andexact description thereof.

My invention relates to annealing boxes and more particularly tothattype formed by casting, the sides, ends and top integral with eaehother.

They object ot my invention is to strengthen and stiften such type otannealing box in such a way as to prevent the I bulging or bucklingwhich has been one oi the most serious ditiiculties encountered in theuse of these cast-metal boxes.

To these ends my invention comprises the novel features hereinafter setforth and claimed. n

In the drawing Figure 1 is a side View partly broken away of my improvedbox: Fig. is a bottom view partly in section on the line 2-2 Fig. l; andFig. 3 is an end view.

The top 2, sides 3 and ends t of my improved box are vcast integral witheach other, and the hollow ribs 5 extend ,up the sidesI ot' the box andover the top thereof. Extending longitudinally of the box, around thesides and ends are the ribs (3 and 7, said ribs uniting with thetransverse ribs 5 where they intersect. 'lhe diagonal or converging ribsS are arranged between the transverse ribs 5 along the sides asindicated in Fig. l, said ribs uniting with the longitudinal ribs (i and7 and rising xpreferably at the lower ends ot' the transverse ribs Theseeonverging ribs unite at. their apex with the upper longitudinal rib (3.In this manner I provide a very strong rigid construction as theconverging ribs form with the longitudinal rib 7 .li-shaped braces inthe walls of the box.- Ihese diagonal ribs 8 are pret erably extended toform an inverted `Y by the vertical portion 9 which strengthens theupper portion of the box. At the ends of the box the diagonal ribs l0unite with the longitudinal ribs 6 and 7 and the vertical portion l1likewise forms a Y as in Fig. l.`

By the employment of the diagonal ribs unit-ing with the longitudinalribs in the manner described I brace and strengthen the side walls ofthe box, so that. the bulging or buckling of the box is prevented andits lit'e greatly increased.

Vith-at I claim is:

l. An annealing box formed of an integral casting, having a pluralityot' external longitudinally extending horizontal ribs intermediate thetop and bottoni. ot said box7 and eonverging ribs rising from the`bottom ot the box and meeting the upper of said longitudinal ribs attheir apex.

2. An 'annealing box ln'med ot' an integral fasting having a, pluralityot external transverse ribs, a.' plurality of external longitudinallyext'eiiding horizontal ribs meeting said transverse ribs, and eonvergingribs ris ing 'from the lower ends ot said transverse ribs and meetingthe upper of said longitudinal ribs at their apex.

In testimony whereof, I the said FRANK (lonnlcs have hereunto set myhand.

FRANK CORDES.

Witnesses ton'r. I). To'r'rnN, WM. A. S'rnlNM even.

